We are asking for this information because some of the fields we work in have very harsh weather and living conditions. We need this information to do our best to keep you safe and healthy. We will not share this information with anyone outside of our organization unless needed for your health and safety in case of an emergency on the field.
You need to be aware that the travel and living conditions can be harsh and intense. You are not guaranteed a good night of sleep regularly. You will most likely see devastation and hardship. If you are not emotionally strong, this will be hard for you.
You need to be aware that most places will not have medical services like the United States. Often, there are no urgent care clinics. Hospital visits are reserved for life-threatening injuries.